Machine for making metal bobbins



zsheets-Sheet. 1. E. WILDER. Machine for Making Metal Bobbns. N0. 240,871. 1);, Palnted May L3, 188|.

*Wi-n E N. PETERS. PhnwLthngI-apher. Washington. D. C.

- Y @sheets-sheet 2. E. W I L D E R.

l Machine for MalkingfMet'al B'obbirl'ls.` No. 240,871. l Patented May 3,1881.`

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WITNES ES: INVENTOR. /smf y@ y@ N.,FETERS, FhuIo-Liihugnphsr, Washington. D. C.

`UNTTED STATES PATENT OFFICE..

ELIHU w1LDEE,oF MANCHESTER, NEW HAMPSHIRE.

MACHINE FOR'MAKING METAL BOBBINS.

SPECIFICATION forming part of Letters Patent No. 240,871, dated May 3, 1881.

Application filed April 10,1876.

.'Z'o all whom it may concern:

Be it known that I, ELIHU WILDER, of Manchester, in the county of Hillsborough and State of New Hampshire, have invented' certain new and useful Improvements in Automatic Bobbin-Machines; and I do hereby declare that the `following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, and to the letters1 of reference marked thereon, which form a part of this specification.

Figure. lis a plan view of the entire machine. Fig. 2 is an enlargedpartial side View of the machine. Fig. 3 is an end View, showing the beveled gearing and inclined shaft. Fig. 4 represents a bobbin. Fig. 5 is a side View of the feed-wheel and ratchet. Fig. 6 is a side and bottom view of the spring-lever clamps. Fig. 7 is a section ofthe placer. Fig. S is an end View of Fig. 7 in connection with the feed-Wheel shown in Figs. 5 and 10. Fig. 9 is a side View of the frame. Fig. l0 is aview showing the method of operating the ratchet` Fig. 11 is anelevation of the centrally-located shaft, E, on the top 'of the machine.

and feed-wheel. feed-wheel, &c.

This invention relates tothe operationof' preparingand finishing the wires for bobbins l and for other purposes, andalso for putting the heads of bobbinson the ends of the prepared wires by successive tools of proper form and structure. 1

When wires are to be hardened they,.bcing previously cut tothe exact length, are supi `pliedj from a hopper,or by any other suitable method,and are one at aztime fed into a wheel properly clamped, and by its intermittent rotation are carried forward, where suitable tools are 'advanced from each side, and by successive movements are properly nished,l and after having been hardened are again placed in the hopper, and by the same movements are again supplied to the wheel, and then are properly headed by the automatic supply of heads from each side and the use of i forcin g-tools, whereby `the two heads are coincidently placed on the ends of the wire, and then, being intermittently advanced, suitable finishing-tools `may be used `to complete the heads or not, as required.

When the wires are not required to be harch ened they are headed and finished as in the second stage, all of which will be hereinafter more fully described.

A is the base or foundation frame, which sustains all of the working parts.

A A are cleats upon each side of the base, to hold in place the movable slide-tables B B, which carry the tool or spindlearms C C O C. These curved arms are fastened movably around a shaft, D, and are permitted to slide upon the shaft, all of which will be understood by reference to Fig. 9. These arms C C C C sustain the pulley-spindles G G, which 'at` their inner ends have tool-stocks cc c c, in which may beinserted the suitable tools to perform the work necessary to be done.

In this present invention it is proposed to insert in the upper stocks two forcing-tools, s' s', as will be hereinafter explained, in the second pair dressing-tools, and 4in the third or lowest pair iinishing-tools. It is obvious that any number of tool-stocks, spindles, and pulleys may be arranged on these arms, which are concentric with the intermediate feed-wheel.

The sliding tables B B are operated intermittently by means of two cams, E E', on a This shaft is supported in curved brackets FF, which are firmly fastened to the base A. Into these cams, at each end of the machine, work the upper ends ofvertical levers G G', their lower ends being pivoted to jointed bars g g, which are attached to the outer ends of the sliding tables B B. These levers G G' have their fulcra at g', in a plate, f, attached to the brackets F F, on the inside. As the cams rotate with shaft E'the movements of levers G G cause the slide-tables B B to advance to the middle of the machine or retire from it, thus giving an intermittent movement of the tools to and from the feed-wheel.v

At the end of shaft E there is a beveled wheel, E, which meshes with another wheel, EN', on the end of an inclined shaft, Em',

which carries at its lower` enda screw-wheel,

D', which is shown in Fig. l. On this shaftD there are two driving-pulleys, D" D", from IOO which belts c' c' c' extend to the small pulleys C' C' on the tool-spindles. It is obvious that v these belts may be arranged either direct, or,

where necessary for a reverse motion, they may 5 be crossed. These driving-pulleys, with the small pulleys, the endless screw, and beveled wheels to connect with the central shaft, E, are all arranged as to speed so that the movements of the cams E' E', whereby the intermittent action of the sliding tables B B, carrying the toolstocks c c c, is in accordance with the dressing of the stocks, and placing the `heads on the wire, and also in accordance with other movements now to be described.

0n shaft E, at its end, where is the beveled wheel, is a cam, H, which operates upon a vertical rod, H', having at its upper end a friction-roller, h, and is held by a guide-bar, 7L". This rod 'H' has at its lower end an inclined surface, h"', which works in a slot, t', in the end of a horizontal rod, I, which is designed to enter, at each advance inwardly, the hole j in the cheek-wheel J, which may be at that moment in place to receive it, to hold the feed-wheel in position while the tools advance to perform their appropriate functions, after which rod I is withdrawn by the spring I'.

On the shaft E, in the middle, is a cam, K, which operates upon a friction-roller, k, in the end of horizontal rod K', Fig. 10. This rod is connected by a joint rod, l, to the upper end of a lever, L, which is connected at its lower end to the pawl L', and is pivoted at Z' to a plate, M, which is secured to the arm M', (shown in dotted lines, Fig. l0.) This movement of cam K causes the intermittent rotation of the ratchet N. This cam, after leaving the friction-roller 7c, moving with the arrows, Figs. 10 and S, operates upon an arm, o, projecting from the stem of the placer O, Fig. 7 in section. This placer is constructed as follows: The main body 0 of it is solid, and at each end is a tube, O' O', in which are placed the supply ofheads im, which are forced u p by springs' u u. From the middle of the body 0 is arod rmly fastened to it. Over this is a closed sleeve or guide, P, having in its upper end a spiral spring, p, and to the lower end a steel bar, P', bent at right angles at each end, which bent ends enter slots i in body part O, which continue down to wings S, in which are circular holes s s, and which bent ends act as placers for the heads.

In Fig. 7 is shown a bobbin, R, in position, and the pushers S' S', one on each side, which have forced the heads on the wire.

The operation is as follows: The hopper Q, Figs. 5 and 1, is supplied'with wire blanks of the right length. As the feed-wheel T, Fig. 8, is carried over in direction of the arrow a wire is fed to the holder t, and is clamped by the 'lever U, as will hereinafter be described, and is 'carried forward until it comes opposite to the line passing-through the holes s s, when the stop-rodI enters the hole j in the wheel J,

4and the placers P' P' are forced down bythe cam K acting on the end of bent bar P, and the two blank-heads v r, which are in the tubes O' O', are forced down the slits r r, Fig. 7, into the holes s s just as the forcing-tools S' S' are advanced by the action of cams E' E' upon the levers G G', which move the sliding tables B B to the middle, carrying the tools with them. The heads are forced on the wire, and then the reverse motions cause the forcingtools to be withdrawn, and the rotation of the cam K carries forward the rod K' and the other connecting parts, whereby the ratchet N moves one step and another wire is supplied into its appropriate clamping device, and the operation is repeated. While the second wire is being headed the first bobbin is advanced to the axis of the second set of tool-holders, and as the frames come together to force the second heads the appropriate tools dress the wire of the first bobbin, and at the next movement these two advance, and the rst bobbin comes into line with the third set of tools, and is finished while the second one is being dressed and the third set of heads are being forced on the wire.

The feed-wheel is now to be described. In Fig. llA is an edge view, in Fig. l0 is a section, and in Fig. S is a side view, of the feedwheel. This wheel is hollow, having certain openings on the periphery, as seen in Fig. 11. /Vithin this wheel, at these openings, are pivoted spring lever-clamps U U, Snc., which are shown in Fig. 6, side and bottom view. They are so pivoted that when closed they form, with the orifices t t of the wheel, circular clamps or jaws for holding the wire pins as they are fed to it.

In Fig. 8 is shown a rim or cam, V, on one side concentric with the periphery of the feedwheel T. When in the revolution of the wheel the levers U U are carried over, their outer ends are crowded against the inner side of the rim V, and the jaws are closed, so that, clamping the wires, they are tightly held until, in the course of revolution, they reach that part of the wheel where there is no rim, and the levers uuclasp the bobbin, when completed, by force of the spring w, and permit itv to drop down into a proper receptacle.

The intermittently-revolvin g feed-wheel, the concentric rim, and clamp-levers above described are shown in a pending application for making machine-needles led by myself. This wheel has attached to it, rst, the stopwheelJ, having in it the holes j j but this wheel may be omitted, and the holes j j can be made in the inner plate of the wheel T. There is also a ratchet, N, on the same shaft with the wheel T. It also may be made fast to the side of the wheel T; and I do not conne myself to the method shown of using a pushing-pawl, but may, if found convenient, use any other method of operating the pawl from the shaft E. j

The construction of the arms C C for holding the tool spindles and pulleys is such that IOO IIO

by being sustained on the main drivin g-shaft D, which carries the driving-pulleys, the driven pulleys and spindles are duly braced against the pull of the belts, and is a valuable feature in this arrangement, on account of the movable frame-work upon which they are sustained, as in most cases the pull would be an injury to the free lateral movement of the'sliding table.

Another feature in this invention is that the successive movement of the blanks from the trst supply to the end enables the operation to be more complete than in any other system in this, viz: It is well known that the rapidity of the manufacture of bobbins has been heretofore limited by a practical difficulty belonging to shopwvork, in this, that these bobbins could not be finished beyond a certain speed. Now, in this process there is no limit in this particular, as successive steps are provided by the advance movement, and more tools can be added, so that it' it should require a certain time to complete a bobbin, then, by using four processes and moving each blank forward every time, four times as many can be finished in that time as by the old process.

I am aware that successive tools have been used in various machines to do different work on the same blank; vet I am not aware that this process has been used to expedite the tinishing of small articles where speed must be limited. y

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

l. The combination, substantially as described, of an intermittently-revolving feedwheel notched across its periphery and provided with pivoted jaws arranged to open for the reception of a blank from a hopper, and close and hold 'the same in position while being operated upon, with a sectional concentric rim for closing thejaws, and two or more cutting or inishing tools arranged on opposite sides of the carrying-wheel, as and for the purpose described.

2. The device for holding and feeding heads to bobbins, constructed substantially as and for the purpose described.

3. The combination of the head-feedin g reservoirs with the placers P P and the cam, substantially as and for the purpose set forth.

4. The combination of the head-feeding reservoir with thefeed-wheel T, substantially as and for the purpose set forth.

5. The combination of the head-feeding reservoir with the feed-wheel and the intermittent series of tools, substantially as and for the purpose set forth.

6. The combination of the driving-shaft having the driving-pulleys, the connectingshaft, cam-shaft, intermittent sliding tables carrying series of tool-spindles, the feed-Wheel constructed as described and operated by ratchet movement, the stop-rod to retain the feed-wheel intermittently, and the reservoirfor holding and feeding the heads, all organized and constructed as and for the purpose of heading and nishin g bobbins or similar articles.

In testimony that I claim the foregoing as my own invention I affix my signature in presence of two witnesses.

ELIHU WILDER. Witnesses:

C. M. CONNELL, ALFRED OLARY EDY. 

